One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(3,4) involution — undirected(5,6)(7,8)(10,15)(11,13)(16,23)(17,21)(18,22)(19,24) involution — undirected(9,10,14,17)(11,15,13,21)(12,19,20,23)(16,22,24,18)(6,8)(9,11,14,13)(10,15,17,21)(12,18,20,22)(16,23,24,19)(9,12,14,20)(10,16,17,24)(11,18,13,22)(15,23,21,19)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.